Water Heater Installation in Baltimore, MD
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Baltimore winters put real demand on a water heater
Water heaters in Baltimore run hard from October through April, with winter nights averaging 28°F. Cold groundwater takes more energy to heat, so the unit works harder for those seven months than it does the rest of the year.
Power is part of the picture too. In Maryland, 11% of households lost power for 24 hours or more in 2024, and the state has logged 13 winter storms and 45 damaging wind events over the past ten years. A new installation should account for what happens when the power goes out, not just how the unit runs when it doesn't. And on efficiency, the federal minimum isn't one number. It's a formula based on the tank's rated volume, applied differently across draw patterns, so the minimum for your household depends on the size of the tank you need.
- 28°F
- the average winter night, and colder incoming water means longer heating
- 7 months
- October through April, the months homes here need heat
- 11%
- of Maryland households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
A heat pump water heater would save about $420 a year to run in Maryland compared with an electric water heater.
Estimates for a typical Maryland home, from EIA household energy data and Maryland fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- Age is the first thing to check, since older tanks fail without much warning. Look for rust colored water, a tank that's rusting on the outside, or water pooling underneath it, since a leaking tank can't be fixed. If it's making a rumbling noise or can't keep up with hot water like it used to, sediment has likely built up in the bottom and the tank is on its way out. A contractor can tell you how much life is left in yours.
- Should I switch to a tankless water heater?
- It depends on what you want from it. A tankless unit heats water as you use it instead of storing it, so you don't run out of hot water partway through a shower, and it takes up much less space than a tank. It's not a fit for every house though. Tankless units often need a larger gas line or a dedicated electrical circuit, and venting requirements are different from a tank's, so a contractor needs to look at your gas and electric setup before you decide.
- What changes when you install a tankless water heater?
- The biggest change is the gas line. Tankless units need more gas flowing through the line than a tank does, so the existing line often has to be upsized to keep the unit fed. Venting changes too, since tankless heaters use a different vent than a storage tank. This work needs a permit from the local building office and an inspection once it's done, and a contractor will know what your specific unit and house require.